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Item 3-PresentationReach Codes Cupertino August 29, 2019 1 2 •Support Cities in meeting climate goals o Encourage safer, healthier all-electric buildings within the building code o Install EV charging during building construction commensurate with local needs Purpose 3 1.Provide cost-effective pathways for both All-Electric and Dual-Fuel (electric + gas) construction 2.Establish the highest possible requirements that are still cost- effective for Dual-Fuel construction. 3.Recommendations must comply within CEC energy code guidelines Guiding Principles 4 Reach Code Recommendations Cost-Effective W/in CEC Guidelines Included in SVCE recommendation Base Title 24 Yes Yes Yes All-Electric Yes Yes Yes –Pathway 1 Dual-Fuel Yes Yes Yes –Pathway 2 Mostly Electric (residential only) Not as a standalone pathway Yes Yes –Pathway 2A CalGreen Tier 1 or Tier 2 Not as a standalone pathway Yes No Ban on Natural Gas Yes No1 No 1 A ban utilizes a city’s Police power, not via a local amendment to Energy Code. Item Date Leader Participant(s)Content Coordination Technical Cost Effectiveness Study Feb 2019 Consultant SVCE/PCE Draft Model Codes Mar 2019 Consultant Cities External Stakeholder Input May 2019 Consultant Cities, SVCE/PCE, Community City Staff Recommendation Aug 2019 Cities Consultant, Stakeholders Submit for Council Vote Fall 2019 Cities City Council, Consultant Training City Staff Dec 2020 Consultant City Staff New Code Effective Jan 2020 Cities Consultant Support AvailableStakeholders •Transitioning leadership to the cities •SVCE and Consultants providing support for each of these next steps 5 Summary Timeline Local Engagement To Date 6 City Letter of Intent June All-Hands Meeting City Staff Meeting(s) Commission Meeting Council Briefing Council Reading Council Vote Mountain View X X X Pending Oct 22 Nov 12 Los Altos X X X X Oct 22 Nov 12 Morgan Hill X X X X Oct 23 Nov 6 Milpitas X X X X Sept Oct Cupertino X X X TBD TBD Los Altos Hills X X X Nov Sunnyvale X X X X Pending Monte Sereno Pending X X Pending Gilroy X X X X Pending Saratoga X X Campbell X Los Gatos Oct 15 County of Santa Clara X 7 Single Family Residence –Base Code All-Electric (1)Electric & Gas (2) Meet Title 24 requirements Meet Title 24 requirements, including: •Pre -wire water heater location for future electric heat pump 8 Single Family Residence –Base Reach Code All-Electric (1)Electric & Gas (2) Meet Title 24 requirements Meet Title 24 requirements, including: •Pre -wire water heater for future electric heat pump •Pre -wire for future electric appliances (+$ 750) •Additional Energy Efficiency measures (+$1500) •Solar thermal or Battery Storage (+ $6000) 9 Single Family –Reach Code option All-Electric (1) Electric & Gas (2) Meet Title 24 requirements Meet Title 24 requirements, including: •Pre-wire water heater for future electric heat pump •Pre-wire for future electric appliances (+$ 750) •Additional Energy Efficiency (+$1500) •Solar thermal or Battery Storage (+ $6000) “Mostly Electric” (2A) Meet Title 24 requirements, including: •Pre -wire for future electric heat pump •Install Electric water and space heating (allows natural gas for cooking) •Pre -wire for future electric range (+$ 250) •Additional Energy Efficiency measures (+$1500) •Solar thermal or Battery Storage (+ $6000) Single and Two-family New Construction 10 Performance Path Prescriptive Path 1. All Electric. Demonstrate that the proposed home will be all electric, OR Build All Electric. Meet 2019 Title 24 Part 6. 2. Mixed Fuel Building. Proposed Design Building shall be at least 10 EDR points less than the Total Energy Design Rating calculated for the Standard Design Building, OR Mixed Fuel Building a. Low leakage ducts b. R-10 perimeter slab insulation c. Compact hot water distribution d. Fan efficacy of 0.35 Watts/cfm e. Either 1) 5 kWh battery OR 2) A solar water heating system. 2A. Electrically Heated Building (electric space and water heating, gas cooking and/or clothes drying). Proposed Design Building shall be at least 2 EDR points less than the Energy Efficiency Design Rating calculated for the Standard Design Building, OR Electrically Heating Building a. Low leakage ducts. b. R-10 perimeter slab insulation. c. Compact hot water distribution. d. Fan efficacy of 0.35 Watts/cfm. “Menu options” are formatted with green highlights 1 + 2 OR 1 + 2 + 2A Multifamily New Construction (≤3 stories) 11 Performance Path Prescriptive Path 1. All Electric. Demonstrate that the proposed home will be all electric, OR Build All-Electric and Meet 2019 Title 24 Part 6. 2. Mixed Fuel Building. Proposed Design Building shall be at least 10 EDR points less than the Total Energy Design Rating calculated for the Standard Design Building, OR Mixed Fuel Building a. low leakage ducts in conditioned space b. 0.25 ASR cool roof c. R-10 slab insulation d. compact Hot Water distribution e. 0.35 W/cfm HVAC fan d. Either 1) 2.75 kWh battery/dwelling OR 2) A solar water heating system. 2A. Electrically Heated Building (electric space and water heating, gas cooking and/or clothes drying). Proposed Design Building shall be less than the Energy Efficiency Design Rating calculated for the Standard Design Building Electrically Heated Building Meet 2019 Title 24 Part 6 “Menu options” are formatted with green highlights 1 + 2 OR 1 + 2 + 2A Nonresidential 12 Performance Path Prescriptive Path 1. All Electric. Demonstrate that the proposed building will be all electric, OR Build All Electric and meet 2019 Title 24 Part 6. 2. Mixed Fuel Building, All Occupancies. Demonstrate that the energy use of the proposed building is 9% more efficient than the 2019 State Energy Code, OR Mixed Fuel Building a. Fenestration with a solar heat gain coefficient ≥ 0.22. b. Airflows to be equal to the zone ventilation minimums. c. Economizers in air handlers ≥ 33,000 Btu/h d. Reduced the lighting power density (Watts/ft2) by ten percent (10%) e. In common areas, improve lighting: 1) Daylight dimming plus off AND 2) Institutional Tuning f. Install drain water heat recovery. 2A. Mixed Fuel Building, Office and Mercantile. Demonstrate that the energy use of the proposed building is 15% more efficient than the 2019 State Energy Code Mixed Fuel Building a. Fenestration with a solar heat gain coefficient ≥ 0.22. b. E/W fenestration area is < ½ of the N/S fenestration. c. Airflows to be equal to the zone ventilation minimums. d. Economizers in air handlers ≥ 33,000 Btu/h e. Reduced the lighting Watts/ft2 by 10% f. Improve lighting: 1) Daylight dimming plus off AND 2) Institutional Tuning AND 3) Occupant sensing in open plan offices 1 + 2 + 2A 1 + 2 OR Reach Code –EV Charging To enact a reach code for EV charging, increase the Quantity, Readiness and/or Charging Speed. Building Type Quantity Readiness Charging Speed Residential 1 per dwelling unit Capable Level 2 Multi-Unit Dwelling 10% of total spaces Capable Level 2 Commercial 6% of total spaces Capable Level 2 CalGreen (Part 11) provides minimum requirements for each aspect of EV Charging per building type [above charts simplified for illustration purposes] Building Type Quantity Readiness Charging Speed Residential 1 per dwelling unit 1 per dwelling unit Capable Ready Ready Level 2 Level 1 Multi-Unit Dwelling 10% 25% of total spaces Capable Ready Level 2 Commercial 6% 10% of total spaces Capable Ready Level 2 13 Readiness Installed Ready Capable Speed Level 3 Level 2 Level 1